Who we are?

PM SPACERS is a brand of Pavan Sales Corporation, Rajkot.

We make concrete cover blocks in Rajkot and supply other building products for construction sites: AAC blocks, glass fiber mesh, FRP manhole covers and construction chemicals.

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Range

Paver, breeze and jali blocks

Alongside cover blocks we also do paver blocks, breeze blocks and jali blocks. Tap a poster to see it larger.

PM Spacers concrete cover blocks from 15 mm to 50 mm
PM Spacers 4-way cover block for slab, beam, column and footing
PM Spacers paver blocks in grey, dark grey and red
PM Spacers square four petal concrete breeze block
PM Spacers terracotta breeze block
PM Spacers four petal terracotta clay jali block
PM Spacers paver blocks for driveways and walkways
PM Spacers concrete breeze block for ventilation
PM Spacers terracotta breeze blocks

Ordering

How an order usually goes

No account and no long forms. Most orders start with one WhatsApp message.

01

Work out the count

Use the calculator below, or just send us your slab, beam and column sizes.

02

Send size and quantity

WhatsApp, a phone call or the enquiry form, whichever is easier.

03

We send the rate

You get today’s price. Once you confirm, we get the order ready.

PM Spacers paver blocks in grey, dark grey and red

Calculator

How many blocks will you need?

Pick slab, beam, column or footing, put in the size, and you’ll get a rough count you can send us for a rate.

  1. Pick slab, beam, column or footing.
  2. Enter the size.
  3. See the count and send it on WhatsApp.

A quick estimate. Your site engineer has the final word.

1. Where will you use the blocks?
2. Enter the size
3. Change gap, block size and extra (optional)

Gap: the distance between two blocks. A smaller gap means more blocks. Blocks at each point: for example, a column often needs one block on each side.

You need about

0 cover blocks

Enter your size to see the count.

Send this on WhatsApp for a price

Why concrete

Why not just use a piece of brick?

Brick pieces and plastic chairs leave weak spots in the cover. A concrete block cures with the slab and ends up part of it.

It keeps rust out

Good cover keeps water and air off the steel. That’s what stops it rusting.

Same gap, bay after bay

Every block is one fixed size, so the cover doesn’t drift from one end of the slab to the other.

It becomes part of the slab

It’s concrete too, so it bonds with the pour instead of leaving a soft spot.

Easy to check

The size is marked on the block, so the engineer can check the cover before concreting.

Get in touch

Tell us the size, the quantity and where the site is. Fill the form, call, or send a WhatsApp message and we’ll come back with the price.

We use your number only to reply to this enquiry.

Cover block range

Each block is cast to one fixed size, so the gap between the steel and the face of the concrete doesn’t change. The 4-way block has a different size on each side; turn it to the one you need.

  • Thin slabs, chhajja (sunshades)15 MM
  • Slabs20 MM
  • Beams25 MM
  • Beams and slabs in wet or outside areas30 MM
  • Columns40 MM
  • Footings and rafts50 MM

Typical values only. Your structural drawing or site engineer decides the final cover.

Full cover block details

Photos

A closer look

Notes

Short guides for the site

Wall being built with AAC blocks
AAC Block vs Red Brick: Which Is Better for Your Walls?
October 8, 2026

A simple comparison of AAC blocks and red bricks for builders and home owners.

Concrete cover blocks by PM Spacers in different sizes, many with binding wire
How Many Cover Blocks Do I Need? A Simple Guide
October 8, 2026

Count cover blocks for a slab, beam or column in a few easy steps.

PM Spacers 4-way cover block that gives 20 mm, 25 mm, 40 mm or 50 mm cover
Cover Block Size for Slab, Beam, Column and Footing
October 8, 2026

Which cover block size should you use? A simple guide for slabs, beams, columns and footings.

Questions

Things people usually ask

If yours isn't here, just send it on WhatsApp.

Ask on WhatsApp

The price depends on the size (like 20 mm or 40 mm) and how many you need. Send us the size and quantity on WhatsApp or the form, and we will send you the price. You can also see our cover blocks price page.

It depends on the slab size and the gap between blocks. Use our cover block calculator. It gives you the count in a few seconds.

Follow your building drawing. On many sites, people use about 20 mm for slabs, 25 mm for beams, 40 mm for columns and 50 mm for footings. Your engineer gives the final size.

Round cover blocks with binding wire in 15, 20, 25, 30, 40 and 50 mm, and a 4-way block that gives 20, 25, 40 or 50 mm cover.

Yes. "Cover block", "concrete spacer" and "concrete cover block" are names for the same product.

AAC means Autoclaved Aerated Concrete. In simple words, it is a light concrete block with many tiny air bubbles inside. See our AAC block page.